DigestionPART III. HOW WE EATPAGES 406 – 420READ INDEPENDENTLY PAGE 406QUESTIONS YOU SHOULD BE ABLE TO DO: PAGE 411, #1-5

How We Eat?How does the food we eat get broken

down into the individual nutrients and the energy we need?

What are the steps?

Human digestive systemPage 407

The MouthWhat goes on in the mouth?

Chewing foodMechanical

Describe what is meant by different teeth for different food.

The Mouth What goes on in the mouth?

SalivaEnzymatic digestionEnzymes: Please know the definition of an enzyme and

be able to explain what it means. As a biochemist, it pains me when students get this wrong

Contains amylase Breaks down long __________________ into shorter

_________________and __________________

Amylase

EsophagusMuscular tube that carries food from the

mouth to the stomach

Mucus: what are the roles of mucus? Besides the esophagus, where is mucus found?

Peristalsis: describe what is going on in the next slide

Peristalsis